1101053555421 has 16 divisors (see below), whose sum is σ = 1486057198080. Its totient is φ = 725046358320.

The previous prime is 1101053555389. The next prime is 1101053555431. The reversal of 1101053555421 is 1245553501011.

It is a happy number.

It is not a de Polignac number, because 1101053555421 - 2⁵ = 1101053555389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101053555431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806520 + ... + 1688958.

It is an arithmetic number, because the mean of its divisors is an integer number (92878574880).

Almost surely, 2^{1101053555421} is an apocalyptic number.

It is an amenable number.

1101053555421 is a deficient number, since it is larger than the sum of its proper divisors (385003642659).

1101053555421 is an equidigital number, since it uses as much as digits as its factorization.

1101053555421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887536.

The product of its (nonzero) digits is 15000, while the sum is 33.

The spelling of 1101053555421 in words is "one trillion, one hundred one billion, fifty-three million, five hundred fifty-five thousand, four hundred twenty-one".